Cerastium holosteoides

The former scientific name for the weed Common Mouse Ear Chickweed.
Chamaemelum nobile

The scientific name for the weed Chamomile.
Chamomile

An uncommon perennial weed of turf, being found mostly on lesser maintained or neglected turf surfaces. It flowers from June to August, having daisy like white flowers with central yellow disc. Its scientific name is Chamaemelum nobile. It prefers sandy soils, especially in coastal locations.
Chenopodium album

The scientific name for the weed Fat Hen.
Cirsium acaule

The scientific name for the weed Dwarf Thistle.
Cirsium arvense

The scientific name for the weed Creeping Thistle.
Cirsium vulgare

The scientific name for the weed Spear Thistle.
Cleavers

A common annual weed of disturbed soils and shrub borders, but not of turf surfaces. It might encroach onto newly seeded and then neglected turf surfaces but would be easily removed by surface raking. It is also called Common Cleavers, as well as Goose-Grass. It scrambles over soil and vegetation with its 'sticky' backward pointing prickles, having leaves arranged in a whorl around the stem. It prefers drier soils but will also grow in damp soils, whilst it will also grow over a wide soil pH range. It doesn't have a particular preference for shade or light, growing in most conditions. It
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Clovers

A general common term for the Trefoil genus called Trifolium, which typically have three leaves, and which belong to the Fabaceae family (formerly called Leguminosae). There are many species, including White Clover, Lesser Trefoil and Red Clover. Some common names for weeds include the word trefoil, such as Birdsfoot Trefoil, but they can belong to different genera, such as Lotus corniculatus, in this case, although it is in the same family.
Common Birds Foot

A common annual weed of some turf surfaces. Its scientific name is Ornithopus perpusillus. It has small pinnate leaves. The main flowering period is May to August, with its flowers being a creamy colour with red veins. It has preference for sandy soils.